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Finding the Fourth Proportional to 196,615.92, 295,020 and 91,508.16

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Solution

The fourth proportional to 196,615.92, 295,020 and 91,508.16 is: 137,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,615.92 : 295,020 = 91,508.16 : x
  2. Step 2: Convert to fraction form
    196,615.92/295,020 = 91,508.16/x
  3. Step 3: Cross multiply
    196,615.92x = 295,020 × 91,508.16
  4. Step 4: Simplify right side
    196,615.92x = 26,996,737,363.20
  5. Step 5: Solve for x
    x = 26,996,737,363.20/196,615.92
  6. Step 6: Final answer
    x = 137,306.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.